The JDBC driver depends more on the db you are querying than on Mendix, since you are writing custom Java code anyway. There are numerous examples on the internet on how to access a MS SQL db from Java.
Did you take a look at the database replication module? It might already support MS SQL (not sure), and otherwise it should be easy to extend to MS SQL support.
I have the code and everything is running, but I was hoping to get some clarity as there are alot of mixed feelings on the Internet.
Is there a Mendix way?
As for the Database Replication Module, we are already using it (awesome tool btw), but I needed some more advanced functionality.
Thanks again.